Voice is played trough headset while other programs play trough speaker.

Hello dear Teamspeak Community,
I always have my headset on when I'm on Teamspeak, but when I listen music on Youtube, the sound of youtube plays on my laptop speaker, and not in my headphone.

I tried to fix this by putting my sound off in the Teamspeak, but it didn't work.
Do you have any solutions for me?
Thanks for your time.
~Ruben

Voice is played trough headset while other programs play trough speaker.